Equalizers anyone?

Well, I'm not an expert, but I can say that if you measure a bass hump at 31.5 Hz, you can certainly use an equalizer to attenuate this frequency, and it doesn't have to be a Rives or Accuphase product. I've done it nicely with an Audio Control C-101.

The downside is the risk of noise in the audio chain, whereas improving the room mitigates this problem.

I agree with Tvad, they can help...but only to a small degree. A good room and an equalizer could find love, a bad room will find little help through Eq-ing.

Dave

I don't believe in EQing to try and solve room problems--for what you'd spend on a good EQ you could just as well treat your rooms and get right to the real problem. EQs still won't correct for all the complex problems going on in a bad room. I'm not familiar with the Accuphase, and a several-band parametric wouldn't be enough, and not very natural. I'd recommend experimenting with some room treatments and rent or borrow an RTA to help place them if you're not comfortable doing it by ear.

If the room has acoustic problems, don't change the music--change the room.

If used properly a parametric EQ can be very effective at smoothing out bass response. They'll work best with those speakers/rooms that need it least.

Check into a Peavey Kosmos on the Peavey website. I use one and it has done more to improve things than any EQ or other black box.